Watch case



FIG. 1 is a perspective view of a watch case showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a first end elevational view thereof;

FIG. 4 is a second end elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines in the drawings are used to show portions of the watch case that do not form part of the claimed design. 

The ornamental design for a watch case, as shown and described. 